PDF malware analysis — malicious · 5ff8c23d0bef9f89

MALICIOUS

PDF

41.6 KB Created: 2021-05-10 21:00:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 9a554cba84e1d16239f54d81113635ea SHA-1: f40fc9f5da5f14372af2007d4c7a63bd5b53fb1b SHA-256: 5ff8c23d0bef9f89a1a3384700a5b157ec54fa7458e7bb6937e2190492210294

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

Heuristics 4

PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE

PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
External URI info PDF_URI

PDF contains an external URL action
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://netcdn.xyz/app/406889139/free-spin-coin-master-game-game-hack PDF link annotation
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/coin-master-hack-app_GM406889139.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/coin-master-free-items_GM406889139.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/free-flip-master-coins_GM406889139.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/get-free-robux_GM431946152.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/hack-coin-master-app-ios_GM406889139.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/free-coins-and-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/minecraft-for-free-apk_GM479516143.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/what-are-points-for-in-roblox_GM431946152.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/mc-hacks_GM479516143.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/earn-free-robux_GM431946152.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/coin-master-daily-free-coins-link_GM406889139.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/free-roblox-animations_GM431946152.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/freespincoin-masterlinkdownload_GM406889139.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/minecraft-coins-free_GM479516143.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/roblox-hack-2021_GM431946152.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/free-robux-scams_GM431946152.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/doctor-louie-roblox_GM431946152.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/how-to-make-roblox-clothes-for-free_GM431946152.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/coin-master-hack-tool-generator_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off000049f5.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x49F5	24392 bytes
SHA-256: `b28a612dbfd45584c318804d7c4d1f1f365c0f475cc12fefad4681ed75161319`
`font_01_sfnt_off000080ab.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x80AB	18148 bytes
SHA-256: `05f474a5dd778b1a8f82bb3f3194e0f6909204339d3dcef5442e6da61b36e890`

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